Find the semi perimeter of a triangle with sides 9cm 12 cm and 30 cm

Answer:

p=65

Step-by-step explanation:

180-50=130

130/2=65

Answer:

D

1.3 times 4.5 is 5.85

Answer:

D

Step-by-step explanation:

BRAINLYEST please

Answer: X 2,6,8,12,20

Y 1,3,4,6,10

Step-by-step explanation:

Divided by 2 too get the answers  or add 10 + 10 you’ll get the answer

Answer:

Y 1,3,4,6,10

Step-by-step explanation:

took the test c:

Answer: 140%

Step-by-step explanation:

Cost of the coats = $45 each

Selling price of the coat = $63 each

The percent of the purchase price that is the sales price would be:

= 63/45 × 100

= 7/5 × 100

= 140%

Therefore, the answer is 140%.

Step-by-step explanation:

first geometric sequence

3^1, 3^2 ,3^3, 3^4,......

3, 9, 27, 81.......

second

5^1, 5^2, 5^3, 5^4,........

5, 25, 125, 625,........

third

2, 10, 18, 26,.....

which has the difference of 8

fourth

100, 90, 80, 70,......

Answer:

The equivalent expression is [tex]\frac{1}{2}\cdot V_{max} > 8\,oz[/tex].

Step-by-step explanation:

The best approach consists in translating the sentence given in the question into mathematical terms until an expression is complete:

(i) I have a half-full bottle of water

Translation: I use a bottle with a maximum volume capacity [tex]V_{max}[/tex], measured in ounces, a half of it is full of water:

[tex]\frac{1}{2}\cdot V_{max}[/tex]

(ii) And it has more than 8 ounces in it

Translation: The volume occupied by the water is greater than 8 ounces. Hence, we get the following inequation:

[tex]\frac{1}{2}\cdot V_{max} > 8\,oz[/tex]

Answer:

[tex]probability \: of \: getting \: red \: sweets = \frac{x}{20} \\ probability \: of \: getting \: yellow \: sweets \: = \frac{(20 - x)}{20} [/tex]

The probability of getting red sweets is x/20 and the probability of getting yellow sweet is (20-x)/20.

Probability is about estimating or calculating how likely or 'probable' something is to happen.

Given that x is the number of red sweets.

The total number of sweets is 20.

The number of yellow sweets = 20 - x.

The probability of getting a red sweet is given by

P(x) = x/20

The probability of getting a yellow sweet is given by

P(20-x) = (20-x)/20

Hence, x/20 is the probability of getting a red sweet and (20-x)/20 is the probability of getting yellow sweet.

To learn more about probability, use the link given below:

https://brainly.com/question/11234923

#SPJ2

Answer:

when y=80 the value of x is 32 and when y=100 what is the value of x so Criss cross 80=32

and 100= x so the answer will be 32*100 divided by 80 is equal to 40 I guess it's 40 the value of x is 40 in my guess

Answer:

V=216cm³

Step-by-step explanation:

V=216cm³

Answer:

$21

Step-by-step explanation:

Step one:

given

she purchased an item for $15

marks up her merchandise 40%.

let us find 40% of $15

and add the answer to the initial price of the item

Step two:

40/100*15

=0.4*15

=$6

Hence the price should she set for the item is

=15+6

=$21

Answer:

D

Step-by-step explanation:

Answer:D

Step-by-step explanation: got it right

Answer:

x=$5400:8

$5400:8x = total loss after the owners contribution

The expression shows the total loss after the owners contribute some money is 8x = 5400

An equation is an expression used to show the relationship between two or more numbers and variables.

Let x represent the amount contributed by each owner as loss.

Since there are 8 owners sharing a loss of $5400, hence:

8x = 5400

x = 675

The expression shows the total loss after the owners contribute some money is 8x = 5400

Find out more on equation at: https://brainly.com/question/13763238

[tex] - 6x + 9 - 4x = 14 \\ - 6x - 4x = 14 - 9 \\ - 10x = 5 \\ x = \frac{5}{ - 10} \\ x = - \frac{1}{2} \\ x = - 0.5[/tex]

Answer:

[tex]-273.15^{\circ}\text{C}[/tex]

Step-by-step explanation:

[tex]T_i[/tex] = Initial temperature of sodium gas = [tex]-78.5^{\circ}\text{C}[/tex]

[tex]\Delta T[/tex] = Change in temperature of sodium gas = [tex]-194.65^{\circ}\text{C}[/tex]

[tex]T_f[/tex] = Final temperature of sodium gas

Change in temperature of gas is given by

[tex]\Delta T=T_f-T_i\\\Rightarrow T_f=\Delta T+T_i\\\Rightarrow T_f=-194.65+(-78.5)\\\Rightarrow \Delta T=-273.15^{\circ}\text{C}[/tex]

The new temperature of sodium gas is [tex]-273.15^{\circ}\text{C}[/tex].

Answer:

Step-by-step explanation:

y2-y1=

x2-x1

2--4=6(negatives cancel out)

3-1=2

so 6/2 =3

3 is slope

Answer:

The answer is

[tex] - 6x + 17[/tex]

Answer:

The answer is 11 PM

Step-by-step explanation:

1,440,000 minutes is the same as 24,000 hours. Then, you add that to 10pm of that day and you get 11 pm. It is the same as multiplying 24 x 1000 hrs. it is like adding 1000 days to that since it is 24 hrs in one day. Hope this helped!!

Answer:

11:00 pm

Step-by-step explanation:

1,440,000 minutes, convert it into hours and you get 24,000 hours. Since 24 hours equal a day 24,000 is 1,000 days. Attach 10:00 pm since its exactly 1,000 days after and you get 11:00 pm.

Answer:

0

Step-by-step explanation:

The minimum number of cavities a patient had was 0 cavities.

Answer:

0

Step-by-step explanation:

The smallest number that indicates cavity is '0' therefore it is the minimum number of cavities

Answer:

The remainder is 4.

Step-by-step explanation:

Note: This question is not correctly stated. It is therefore correctly restated before answering the question as follows:

When 17 is divided by k; where k is a positive integer less than 17, the remainder is 3. What is the remainder when the sum of the possible values of k is divided by 17?

The explanation of the answer is now given as follows:

Since k < 17, it implies that the possible values of k must be from between 1 and 16 inclusive.

Between 1 and 16, only 7 or 14 will give a remainder of 3 when either of them is used to divide 17. Therefore, 7 and 14 are the possible values of k.

Therefore, we have:

Sum of the possible values of k = 7 + 14 = 21

Also, we have:

Sum of the possible values of k divided by 17 = 21 / 17 = 1 with a remainder of 4.

Therefore, the remainder is 4 when the sum of the possible values of k is divided by 17.

Answer:

14.5

Step-by-step explanation:

Find the unit rate

Answer:

it is a it the first one. 7/13

Answer:

A.

Step-by-step explanation:

The bottom number is the same so leave then and just add the top.

Makes 7/13

Answer:

x = - 1, 0.6

Step-by-step explanation:

[tex]5 {x}^{2} + 2x - 3 = 0 \\ \\ 5 {x}^{2} + 5x - 3x - 3 = 0 \\ \\ 5x(x + 1) - 3(x + 1) = 0 \\ \\ (x + 1)(5x - 3) = 0 \\ \\ x + 1 = 0 \: \: or \: 5x - 3 = 0 \\ \\ x = - 1 \: \: or \: \: x = \frac{3}{5} \\ \\ x = - 1 \: \: or \: \: x = 0.6 \\ \\ x = - 1, \: \: 0.6[/tex]

Answer:

X= -1 or X=3/5

Step-by-step explanation:

5x^2+2x-3=0

(x+1)(5x-3)=0

x= -1 or 5x/5=3/5

x=3/5

Answer:

Yes

Step-by-step explanation:

A integer is any number that's not a fraction.

Answer:

yes

Step-by-step explanation:

integer are numbers that aren't a fraction

Answer:

1

Step-by-step explanation:

Hello :)

So to answer this problem, we can use the rise over run formula.

The rise is the difference of any two y values.

The run is the difference of the x values from the same two y values.

This question gives us 1,-2 and 3,0

We can use them for the formula:

-2 - 0 divided by 1 - 3

-2/-2 = 1

Answer:

[tex]m=1[/tex]

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Algebra I

Step-by-step explanation:

Step 1: Define

Point (1, -2)

Point (3, 0)

Step 2: Find slope m

Answer:

13.75x = 3,255 + 2.90x

Step-by-step explanation:

Given that,

Amount invested on computer hardware = $3,255

Amount invested to buy and package each disk = $2.90

Selling price for each program = $13.75

We need to find the equation that is used to find how many disks you must sell to break even. Let there are n disks that you must sell.

ATQ,

$3,255 is a fixed amount. $2.90 and $13.75 depends on x.

So,

13.75x = 3,255 + 2.90x

We can solve the above equation to find the no. of disks.

13.75x - 2.90x = 3255

10.85x = 3255

x = 300

Hence, you must sell 300 disks to break even.

Answer:

B. √5 units

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Algebra II

Step-by-step explanation:

Step 1: Define

Find points from graph.

Point A (-3, 2)

Point C (-1, 3)

Step 2: Find distance d